Feature History for MCID for Cisco IOS Voice Gateways

Support was added for the new Cisco IOS command structure for voice applications in the HTTP Client API for TCL IVR feature.

Finding Support Information for Platforms and Cisco IOS Software Images

Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image support. Access Cisco Feature Navigator at http://www.cisco.com/go/fn . You must have an account on Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at the login dialog box and follow the instructions that appear.

For more information about this and related Cisco IOS voice features, see the following:

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the Feature Information Table at the end of this document.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.

Prerequisites for MCID for Cisco IOS Voice Gateways

MCID must be configured in Cisco Unified Communications Manager 4.0 (formerly known as Cisco CallManager 4.0) or later. For information, see the "Malicious Call Identification" chapter in the Cisco Unified CallManager Features and Services Guide, Release 4.0(1).

Information About MCID for Cisco IOS Voice Gateways

MCID

Malicious Call Identification (MCID) is a supplementary service that enables Cisco Unified Communications Manager to identify the source of malicious calls. A user who receives a malicious call from another network, typically the PSTN, can select a softkey on the IP phone which immediately notifies the system administrator, flags the call detail record (CDR) for the Cisco Unified Communications Manager cluster, and notifies the PSTN of the malicious nature of the call, allowing the offnet system to take action, such as notifying legal authorities.

The figure below shows an example of the MCID call flow. After receiving an MCID request from an endpoint device (victim), Cisco Unified Communications Manager sends an H.225 Facility message with the MCID information element (IE) to the voice gateway. The gateway sends a Q.931 Facility message with the MCID IE to the ISDN network (central office).

Figure 1

MCID Functionality

A called party invokes MCID by pressing the appropriate softkey on the IP phone. A configurable timer is available when awaiting a response after sending a Facility message to the PSTN. If a response is not received within the specified time, the TCL IVR script is notified. Depending on how the script is written, it could try to reinvoke MCID or perform some other action, for example, playing a message to the user that the MCID attempt did not work.

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Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.